patch 8.1.0182: Unicode standard was updated

Problem:    Unicode standard was updated.
Solution:   Include the changes. (Christian Brabandt)
diff --git a/src/version.c b/src/version.c
index e6a7d8b..679aabd 100644
--- a/src/version.c
+++ b/src/version.c
@@ -790,6 +790,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    182,
+/**/
     181,
 /**/
     180,